Quote:
Originally Posted by Lizard
Hi,
after upgrading my HPI Blur to Firmware 1.46 I have some questions.
Torque Control:
What is the maximum value for Torque Control? In the Castle Link software, there are values from 0 to 10 in the dropdown box, but manually I could type in let's say "20". Will that have an effect, i.e. when I type in 20, will I have less torque limiting than with 10? The reason why I'm asking is follows: I like to have all the torque possible but would basically like to filter out "current spikes" that sometimes happen when landing on throttle or when tires get stuck, little rocks lock up the drivetrain etc.
So my thinking was: Use a high value (so that I won't notice the torque limiting while bashing around) but low enough so that the current spikes are filtered out.
The cogging issues with FW 1.2x onwards to 1.45:
I have read alot on forums on cogging issues with newer Beta firmwares, now with 1.46 the issue is supposed to be better. However, I still have light cogging that wasn't there with the original Firmware. Is there something I can do about this? I was thinking about playing with the "start power" values, will that help?
It has been more than three years without a final version now, will there be a final version with cogging issues fixed sometime in the future?
I'm thinking about getting a Mamba XL2, does it run the same firmware?
cheers,
Lizard
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Hi Lizard,
The actual number in torque control specifies the maximum voltage drop across the motor...
So to calculate maximum current at a specific torque control level, divide the torque control number by the resistance of the motor.
So, for a torque number of, say, 2, the maximum current would be 2.0 / motor resistance. If the motor resistance was 12 milliohms, that would be 2.0 / .012 = 166 amps.
Note that this is maximum instantaneous current -- average current will be MUCH lower.
Thanks!
Patrick